Zachariah Benjamin – Mercantile Marine - S.S. Harmattan

Assistant Cook Zachariah Benjamin – Mercantile Marine, S.S. Harmattan

Early Life and Background

Very little is known about Zachariah Benjamin, and few records of his life have survived. According to the Commonwealth War Graves Commission, Zachariah was born in 1868 in Swansea, the son of Simon Benjamin and Ellen Abraham. His surname and family background suggest that he may have been of Jewish descent, though this cannot be confirmed from the available evidence.

Service in the Mercantile Marine

Registers and Indexes of Births, Marriages and Deaths of Passengers and Seamen at Sea

Zachariah Benjamin served as an Assistant Cook in the Mercantile Marine during the First World War. His name appears in the Registers and Indexes of Births, Marriages and Deaths of Passengers and Seamen at Sea, which records that he lost his life on 5 May 1917 while serving aboard the S.S. Harmattan.

The S.S. Harmattan

S.S. Harmattan
The S.S. Harmattan was a British steam merchant vessel of 4,792 tons, built in 1911 by Swan Hunter & Wigham Richardson Ltd. for the Harrison Line of Liverpool. The ship was part of Britain’s essential merchant fleet, transporting cargo and government stores across dangerous waters during wartime.

On 5th May 1917, while sailing in the Mediterranean Sea, the Harmattan struck a mine laid by the German submarine UC-37, approximately seven miles north of Cape Bon, Algeria. The vessel had been travelling from Avonmouth, via Gibraltar, carrying government stores when the explosion occurred. The ship sank rapidly, resulting in the loss of 36 crew members, including Assistant Cook Zachariah Benjamin.

The loss of the Harmattan highlights the constant dangers faced by merchant seamen during the First World War, as German U-boats and mine-laying submarines sought to disrupt vital shipping routes across the world’s oceans.

The German Submarine UC-37

The UC-37 was a Type UC II minelaying submarine of the Imperial German Navy, ordered in November 1915, launched in June 1916, and commissioned in October 1916. Built by Blohm & Voss in Hamburg, she displaced around 427 tons surfaced and 509 tons submerged, with a length of 50.35 metres. UC-37 was powered by diesel and electric engines, giving her a surface speed of 11.6 knots and a submerged speed of 6.6 knots.

She was armed with six mine tubes, carrying up to 18 UC-200 mines, three torpedo tubes (two bow and one stern), seven torpedoes, and an 8.8 cm deck gun, and carried a crew of about 26 men.

During her service, UC-37 conducted 13 patrols, sinking 66 ships by mines or torpedoes, including the S.S. Harmattan on 5th May 1917. She surrendered to Allied forces at Sevastopol on 25th November 1918 and was later broken up at Bizerte in 1921. UC-37’s record underscores the devastating effectiveness of German submarine warfare and the extreme peril faced by Allied merchant ships throughout the Great War.

Loss at Sea and Commemoration

S.S. Harmattan
Tower Hill Memorial, London
credit - Benjidog Historical Research Resources:
The Merchant Navy Memorial 

S.S. Harmattan
Tower Hill Memorial, London
credit - Benjidog Historical Research Resources:
The Merchant Navy Memorial 

S.S. Harmattan
Tower Hill Memorial, London
credit - Benjidog Historical Research Resources:
The Merchant Navy Memorial 

S.S. Harmattan
Tower Hill Memorial, London
credit - Benjidog Historical Research Resources:
The Merchant Navy Memorial 

















Zachariah Benjamin was among those who perished in the sinking of the S.S. Harmattan on 5th May 1917. Like so many in the Mercantile Marine, he served courageously in a civilian role, contributing to Britain’s wartime supply network in dangerous and unpredictable conditions.

His name is commemorated on the Tower Hill Memorial, London, which honours the men and women of the Merchant Navy and Fishing Fleets who lost their lives at sea during the First World War and have no known grave but the ocean.

Legacy

Though few details of his personal life remain, Zachariah Benjamin’s service and sacrifice represent the thousands of seafarers who gave their lives to sustain Britain during the Great War. His memory endures among those commemorated on the Tower Hill Memorial, a lasting tribute to the courage of the Merchant Navy and their vital role in securing victory through endurance and sacrifice.

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